(19)

(11)

EP 2 912 514 A1

(12)

(43) Date of publication: 02.09.2015 Bulletin 2015/36 (21) Application number: 13851657.0 (22) Date of filing: 27.08.2013

(51) International Patent Classification (IPC):  G02B 27/02(2006.01) G06F 3/01(2006.01) (86) International application number: PCT/KR2013/007666 (87) International publication number: WO 2014/069776 (08.05.2014 Gazette 2014/19)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME (30) Priority: 29.10.2012 KR 20120120312 27.11.2012 US 201213686596 (71) Applicant: LG Electronics Inc. Seoul 150-721 (KR)	(72) Inventor: CHO, Eunhyung Seoul 137-724 (KR) (74) Representative: Ter Meer Steinmeister & Partner  Patentanwälte mbB Nymphenburger Straße 4 80335 München 80335 München (DE)